Emerging Contaminants in Aquatic Ecosystems: Understanding the Sources, Impacts, Challenges, And Future Perspectives for Sustainable Water Quality Management

Abstract

The presence of emerging contaminants (ECs) in aquatic ecosystems has become one of the most pressing global environmental issues of the 21st century. These contaminants include pharmaceuticals, personal care products, pesticides, microplastics, industrial chemicals, and endocrine-disrupting compounds that are not completely removed by conventional wastewater treatment systems. Their continuous discharge into rivers, lakes, and oceans poses potential risks to aquatic organisms, biodiversity, and even human health through bioaccumulation and trophic transfer. This paper discusses the sources, occurrence, and environmental behavior of emerging contaminants, explores their effects on aquatic ecosystems, reviews key findings from recent literature, and identifies the challenges and opportunities for monitoring and management. The study emphasizes the urgent need for advanced analytical methods, effective policy frameworks, and sustainable remediation technologies to safeguard aquatic environments from the growing threat of emerging pollutants.

KEYWORDS: Emerging Contaminants, Aquatic Ecosystems, Pharmaceuticals, Endocrine Disruptors, Microplastics, Water Pollution, Ecotoxicology, Wastewater Treatment.